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Alternating Current and Voltage

Alternating Current and Voltage
A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of

1.3 MHz
12 kHz
18 kHz
25 kHz

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Alternating Current and Voltage
When a sine wave has a frequency of 100 Hz in 12 s it goes through

12 cycles
120 cycles
1,200 cycles
1/100 cycle

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Alternating Current and Voltage
A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is

1%
25%
100%
50%

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Alternating Current and Voltage
The average value of a 12 V peak sine wave over one complete cycle is

1.27 V
7.64 V
0 V
6.37 V

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Alternating Current and Voltage
If the rms current through a 6.8 k resistor is 8 mA, the rms voltage drop across the resistor is

8 V
5.44 V
54.4 V
7.07 V

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Alternating Current and Voltage
The conductive loop on the rotor of a simple two-pole, single-phase generator rotates at a rate of 400 rps. The frequency of the induced output voltage is

400 Hz
100 Hz
indeterminable
40 Hz

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MORE MCQ ON Alternating Current and Voltage

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